Creating a Mirror Volume

Procedure to create mirror volume.

Prerequisites

  • The fabric for which you wish to create the volume must have been created on the cloud or on-premises or in an air-gapped environment.
  • The standard volume that you wish to mirror must have been created, before you can create a mirror volume.
  • You must have the permission and valid activation key to create a mirror volume on the fabric.

About this task

A mirror is a replica of a standard volume and consumes space on the disk. You can create a mirror of an existing volume by using the Data Fabric UI.

Mirror volumes can be used for data recovery to recover data on corrupted or lost volume data.

A mirror volume can be created on-premise or in the cloud, based on your fabric setup. Mirror volumes can be created on a fabric other than the fabric to which the source volume belongs.

Mirror volumes created on-premise are called local mirrors.

Mirror volumes can be local or remote.

Remote mirrors are used for disaster recovery, while local mirrors are used for load balancing.

Mirror volumes that are created from mirror volumes are called cascading mirrors.

Follow the steps given below to create a mirror volume.

Procedure

  1. Log on to the Data Fabric UI.
  2. Under the default Fabric user, click Create Volume on the Resources card. Alternatively, you can click the ellipsis under Actions for the volume to mirror, on the Resources card, and click the Create mirror option to create a mirror for the volume.
  3. Enter the volume name.
  4. Select the fabric on which you wish to create the volume from Source Fabric.
  5. Select the Mirror option for Type.
  6. Select the Source Cluster that represents the cluster/fabric that contains the volume to replicate.
  7. Select the Source Volume to replicate. This is non-editable if you have already chosen the volume to mirror.
  8. Specify the Mount Path for the volume.
  9. Enter the Volume Limit. The value specified for the volume limit must be less than or equal to the fabric capacity.

  11. Select a security policy for the volume. This is an optional step.
  12. Turn on the Data at rest encryption toggle to enable encryption for data at rest. This is an optional step.
  13. Turn on the Data tiering toggle to enable data tiering to be able to offload data to cold tier. This is an optional step.
    1. If you enable data tiering, select tiering type. On selecting tiering type as Remote archiving(Cold), you can offload data to a cold tier.
    2. If you have selected Remote archiving (cold), select the Storage policy and the Remote Target. You can create a new storage policy and/or a remote target by clicking Create new under the respective dropdowns.
  14. Click Create.

Results

The mirror volume is created.

NOTE
Alternatively, you can click the volume to mirror in Resources list, and click Actions > Create mirror
Related maprcli Commands
To implement the features described on this page, the Data Fabric UI relies on the following maprcli command. The command is provided for general reference. For more information, see maprcli Commands in This Guide.